In this example, we will use the CI third-party SSL helper to enforce an https or HTTP URI request and response between CI and the browser. This example will be constructed from the following helpers:
application/helpers/ssl_helper.php: The CI helper for SSL that implements SSL on the links.application/controllers/helpersslexample.php: This controller loads the helper and implements SSL on the links. The helper is loaded in the constructor.$this->load->helper('ssl'),application/views/helper-ssl-view.php: This is the rendered view that SSL is implemented on.
Let us assume the URI to the project root is http://mydomain.com/myproject. http://mydomain.com/myproject/helpersslexample.
This CI helper file implements the services described in the preceding section. This helper uses the built-in CI URL library and URL helper using the redirect CI URL helper function.
<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed'),
if (!function_exists('force_ssl')) {function force_ssl(){ // get the CI instance to access the CI resources $CI =& get_instance();// Change the base_url to have https prefix
$CI->config->config['base_url'] =str_replace('http://', 'https://',$CI->config->config['base_url']);
if ($_SERVER['SERVER_PORT'] != 443){ // redirect CI to use https URI
// so that ($CI->uri->uri_string() return
// the current URI with https prefix
redirect($CI->uri->uri_string());}}}
if (!function_exists('remove_ssl')) {function remove_ssl(){$CI =& get_instance();
// Change the base_url to have http prefix
$CI->config->config['base_url'] =str_replace('https://', 'http://',$CI->config->config['base_url']);
if ($_SERVER['SERVER_PORT'] != 80){// redirect CI to use http URI
// so that ($CI->uri->uri_string() return
// the current URI with http prefix
redirect($CI->uri->uri_string());}}}Now we will see how the controller loads the SSL helper and calls its function force_ssl to enforce the HTTPS URI request and response with the browser.
class Helpersslexample extends CI_Controller {
public function __construct() {
parent::__construct();
// Loading the ssl helper
$this->load->helper('ssl'),
// Enforce URI request of https
force_ssl();
}
/**
* Index Page for this controller.
*
*/
public function index()
{
$this->load->helper('url'),
$this->load->view('helper-ssl-view'),
}
}
/* End of file helpersslexample.php */
/* Location: ./application/controllers/helpersslexample */
The view file code is as follows:
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>Menu</title>
</head>
<body>
<table>
<tr>
<td>
<a href="<?php echo site_url('welcome'), ?>">
Welcome - You are using https
</a>
</td>
</tr>
<tr>
<td><a href="<?php echo site_url('example2/more/1/2/3'),
?>">Example2</a></td>
</tr>
</table>
</body>
</html>..................Content has been hidden....................
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